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Thanks for posting in the Intel RealSense community.
I have been investigating your issue, what hardware are you using on your implementation?
The ZR300 has only been tested and validated on the Intel Joule 570x and the Aaeon UP board, if the ZR300 camera is been used with other hardware this can cause the board to have unexpected behaviors and even don’t work at all.
In the following link you will find information on how to check the calibration and calibrate your sensor.
Hope this information helps, if you have any additional question let me know.